12-letter words containing o, k, l, a
- hemiplankton — plankton that spend part of their life cycle in a vegetative state on the sea bottom, riverbed, etc. (opposed to holoplankton).
- holding tank — a tank for the temporary storage of a substance.
- holidaymaker — vacationer.
- holkar state — a former state of central India, ruled by the Holkar dynasty of Maratha rulers of Indore (18th century until 1947)
- holkham hall — a Palladian mansion near Wells in Norfolk: built 1734–59 by William Kent for Thomas Coke
- holoplankton — plankton that spend their entire life cycle as free-swimming organisms (opposed to hemiplankton).
- hypokalaemia — Alternative form of hypokalemia.
- jackson hole — a valley in NW Wyoming, near the Teton Range: wildlife preserve.
- jacksonville — a seaport in NE Florida, on the St. John's River.
- james k polk — James Knox, 1795–1849, the 11th president of the U.S. 1845–49.
- jodrell bank — site of a radio astronomy observatory (Nuffield Radio Astronomy Laboratories) in NE Cheshire, England, that operates a 250-foot (76-meter) radio telescope.
- kachina doll — a Hopi Indian doll carved from cottonwood root in representation of a kachina and given as a gift to a child or used as a household decoration.
- kaleidophone — an instrument, invented by Professor Charles Wheatstone (1802-1875), consisting of a light on a vibrating rod with a reflecting knob for exhibiting the effect of sound waves
- kaleidoscope — an optical instrument in which bits of glass, held loosely at the end of a rotating tube, are shown in continually changing symmetrical forms by reflection in two or more mirrors set at angles to each other.
- kalmar sound — a strait between SE Sweden and Öland Island. 85 miles (137 km) long; 14 miles (23 km) wide.
- karlovy vary — a city in W Czech Republic: mineral springs; Carlsbad Decrees (1819).
- keratohyalin — (biology) A protein structure found in granules in the stratum granulosum of the epidermis, which may be involved in keratinization, and in Hassall corpuscles in the thymus.
- keratoplasty — plastic surgery performed upon the cornea, especially a corneal transplantation.
- ketoconazole — a synthetic substance, C 26 H 28 Cl 2 N 4 O 4 , used to treat a variety of fungal infections.
- kilocalories — Plural form of kilocalorie.
- kinetoplasts — Plural form of kinetoplast.
- kingdom hall — a meeting place of Jehovah's Witnesses for religious services.
- kite balloon — a barrage balloon intended for use in information-gathering and observation; it is usually tethered to the ground and has lobes to keep it stable and pointing into the wind
- kleptocratic — a government or state in which those in power exploit national resources and steal; rule by a thief or thieves.
- kleptomaniac — a person who has kleptomania.
- kluge around — (jargon) To avoid a bug or difficult condition by inserting a kluge. Compare workaround.
- knowableness — the quality of being knowable
- knowledgable — possessing or exhibiting knowledge, insight, or understanding; intelligent; well-informed; discerning; perceptive.
- kolyma range — a mountain range in NE Russia, in NE Siberia, extending about 1100 km (700 miles) between the Kolyma River and the Sea of Okhotsk. Highest peak: 1862 m (6109 ft)
- kona cyclone — a slow-moving cyclone occuring during the winter over the subtropical Pacific Ocean.
- labor market — the available supply of labor considered with reference to the demand for it.
- lady's-smock — a N temperate plant, Cardamine pratensis, with white or rose-pink flowers: family Brassicaceae (crucifers)
- lake balaton — a large shallow lake in W Hungary. Area: 689 sq km (266 sq miles)
- lake jackson — a town in S Texas.
- lake nipigon — a lake in central Canada, in NW Ontario, draining into Lake Superior via the Nipigon River. Area: 4843 sq km (1870 sq miles)
- lake ontario — a province in S Canada, bordering on the Great Lakes. 412,582 sq. mi. (1,068,585 sq. km). Capital: Toronto.
- lake station — a town in NW Indiana.
- lake torrens — a shallow salt lake in E central South Australia, about 8 m (25 ft) below sea level. Area: 5776 sq km (2230 sq miles)
- lancet clock — a mantel clock having a case formed like an acutely pointed arch.
- lark sparrow — a North American sparrow, Chondestes grammacus, having a distinctive brown-and-white facial pattern.
- leader block — Nautical. lead block.
- library book — a book owned by a library
- liliuokalani — Lydia Kamekeha [kah-me-ke-hah] /ˌkɑ mɛˈkɛ hɑ/ (Show IPA), 1838–1917, last queen of the Hawaiian Islands 1891–93.
- lincoln park — a city in SE Michigan.
- loansharking — the practice of lending money at excessive rates of interest.
- lock forward — either of two players who make up the second line of the scrum and apply weight to the forwards in the front line
- locker plant — an establishment for storing food under refrigeration, containing lockers for renting to individual users.
- longboat key — a narrow barrier island in the Gulf of Mexico, SW of Florida, sheltering Sarasota Bay: sports fishing.
- look askance — glance sidelong or with suspicion
- look daggers — to turn one's eyes toward something or in some direction in order to see: He looked toward the western horizon and saw the returning planes.